Abstract
In order to understand a number of power of system phenomena and to foresee critical conditions in system operation, such as voltage collapse, a real-time simulator able to model the dynamic behavior of large power systems has been needed for long time. The need for real-time simulations stems from the fact that in many practical situations it is desirable to test new equipment and analyze the dynamic behavior of a large power system using the actual pieces of equipment. We developed a new digital simulator based on a hypercube type massively parallel computer to achieve this objective. The new simulator features: (1) Real-time simulation of a large power system which covers transient stability through long term behavior with constant accuracy level. (2) User friendly man-machine interfaces which mimics actual operating environment and real-time data presentation on a CRT. (3) High speed digital/analog conversion interfaces which connect the digital simulator to actual equipment.
